Usporedba prirodnog i ubrzanog starenja otisaka na tiskovnim podlogama s alternativnim vlakancima

master's thesis

• Author: Stella Tokić
• Mentor: Irena Bates (mentor)
• Committee member: Ivana Plazonić (član povjerenstva)
• Committee member: Irena Bates (član povjerenstva)
• Committee member: Vesna Džimbeg Malčić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Graphic Arts; Zagreb
• Defense date and country: 2020-9-22, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Graphic Technology

Abstract

Papir je najzastupljenija tiskovna podloga za otiskivanje ambalaže i etiketa.

Pošto je osnovni izvor sirovine za proizvodnju papirnatih tiskovnih podloga

u svijetu još uvijek drvo, globalna svijest o rizicima eksploatacija šuma je u

porastu kao i važnost recikliranja i pronalaženja alternativnih izvora

celuloznih vlakanca.

U ovom radu za izradu tiskovnih podloga koristit će se slama kao

nusprodukt ratarske proizvodnje žitarica te s time potencijalna

lignocelulozna sirovina. S obzirom da je starenje neizbježan proces svake

tiskovne podloge ali i otiska, a degradacija kvalitete otiska uslijed starenja

uveliko ovisi o svojstvima tiskovne podloge i boje, ovo je istraživanje

usmjereno na analizu kvalitete i optičku stabilnost otiska na tiskovnim

podlogama s vlakancima slame nakon izlaganja prirodnom i ubrzanom

starenju. Tiskovne podloge za potrebe ovog istraživanja izrađene su u

laboratorijskim uvjetima miješanjem reciklirane drvne pulpe s različitim

udjelima vlakanca slame. Tiskovne podloge potom su otisnute digitalnom

tehnikom (UV inkjet), te nakon spektrofotometrijskih mjerenja odvojene u

dvije skupine (za prirodno i za ubrzano starenje u uređaju SunTEST

XLS+). Cilj ovog rada je usporediti i istražiti kvalitetu i optičku stabilnost

otiska na osnovu promjena kolorimetrijskih vrijednosti i definiranja

Euklidove razlike boje (ΔE₀₀) nakon izlaganja starenju.

Abstract (english)

Paper is the most common printing medium for printing packaging and

labels. As the main source of raw material for the production of paper

printing substrates in the world is still wood, global awareness of the risks

of forest exploitation is on the rise as is the importance of recycling and

finding alternative sources of cellulose fibers.

In this work, straw will be used as a by-product of cereal production and

thus a potential lignocellulosic raw material for the production of printing

substrate. Since aging is an inevitable process of any printing substrate but

also of the printed substrate and the degradation of print quality due to

aging largely depends on the properties of the printing substrate and inks.

This research is focused on the analysis of the quality and optical stability

of prints on printing substrate containing straw fibers after exposure to

natural and accelerated aging.

Press substrates for the purposes of this study were made in laboratory

conditions by mixing recycled wood pulp with different proportions of

straw fiber. The printing media were then printed by digital technique (UV

inkjet), and after spectrophotometric measurements separated into two

groups (for natural and accelerated aging in the SunTEST XLS + device).

The aim of this paper is to compare and examinethe quality and optical

stability of the print based on changes in colorimetric values and to

defining the Euclidean color difference (ΔE₀₀) after exposure to aging.

• Keywords: alternativna vlakanca; digitalni tisak; inkjet; kolorimetrijske vrijednosti; prirodno starenje; reciklirana drvna vlakanca; ubrzano starenje; vlakanca slame
• Keywords (english): accelerated aging; alternative fibers; colorimetrics value; digital printing; inkjet; natural aging; non-wood fibers; recycled wood fibers
• Language: croatian
• URN:NBN: urn:nbn:hr:216:941440
• Study programme: Title: Graphic technology; specializations in: Graphic technology, Design of graphic products; Course: Graphic technology; Study programme type: university; Study level: graduate; Academic / professional title: sveučilišni/a magistar/magistra inženjer/inženjerka grafičke tehnologije (sveučilišni/a magistar/magistra inženjer/inženjerka grafičke tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-04-18 23:02:48